FIX: Use proper `replaceState` when updating a location hash

app/assets/javascripts/discourse/lib/static-route-builder.js.es6

@@ -6,7 +6,7 @@ const configs = {
   "privacy": "privacy_policy_url"
 };
 
-export default (page) => {
+export default function(page) {
   return Discourse.Route.extend({
     renderTemplate() {
       this.render("static");

app/assets/javascripts/discourse/lib/url.js.es6

@@ -122,7 +122,7 @@ const DiscourseURL = Ember.Object.createWithMixins({
     // Scroll to the same page, different anchor
     if (path.indexOf('#') === 0) {
       this.scrollToId(path);
-      history.replaceState(undefined, undefined, path);
+      this.replaceState(path);
       return;
     }